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Forest Commerce Quantity Preflight
x402
Forest Commerce Quantity Preflight is a paid API for AI agents from http--forest-gas-station-mainnet--lcjl27p8lmjs.code.run, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-02).
Validates a requested item quantity against public variant constraints and known availability without reserving or purchasing inventory.
Price / call$0.003
Success—
StatusUnknown
How this service works
Check a requested quantity against public variant constraints and known availability. Unknown stock remains unknown; this capability never reserves or purchases inventory. Base mainnet USDC
Output
Returns whether the requested quantity is valid against the variant's public constraints, any known availability signal (in stock, out of stock, or unknown), and a hash of the result that can be stored and compared in future calls to detect material changes. Does not reserve inventory or initiate any purchase.
Example use cases
Bulk order quantity gate check
“I want to order 25 units of the blue size-L hoodie variant abc123 at https://store.example.com/products/hoodie — can you verify that quantity is within their allowed limits before I proceed?”
Cart preflight before checkout
“Before I hit checkout, validate that quantity 2 of variant id=V-99012 is available at https://shop.brandsite.com/items/sneakers so I don't waste time on a failed order.”
Inventory change detection
“I checked this product last week — can you re-run a quantity preflight for 10 units of variant option-color-red at https://wholesale.example.com/catalog/item-55 and tell me if anything changed? Here's the previous result hash: sha256:a3f1c2d4e5b6789012abcdef3456789012abcdef3456789012abcdef34567890ab.”
Technical details
Endpoint
POSThttps://http--forest-gas-station-mainnet--lcjl27p8lmjs.code.run/commerce/quantity-preflight?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a lightweight, non-committing preflight check before attempting a purchase or cart operation — specifically to catch quantity limit violations or obvious unavailability early. Prefer it over full checkout flows when the goal is just to validate feasibility. Also useful for monitoring whether a variant's constraints or availability have materially changed since a prior check, using the hash comparison feature.
Side effects
- URL is unreachable or returns non-200 — endpoint may return an error or unknown availability status
- Variant ID not found at the given URL — constraint data unavailable
- Quantity exceeds the provider's maximum of 100 — rejected by input schema
- Previous hash does not match expected pattern — validation error on the hash field
- Product page does not expose machine-readable variant constraints — availability remains unknown
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| url | string | Public HTTP(S) URL to inspect, resolve, or compare. |
| options | object | Public identifiers value used to scope this lookup. |
| variant | object | Public identifiers value used to scope this lookup. |
| quantity | integer | Requested item quantity to validate against provider limits. |
| variant_id | string | Public provider variant identifier to validate. |
| destination | object | Public identifiers value used to scope this lookup. |
| previous_hash | string | Earlier result hash used to detect a material change. |
Tags
x402
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